spandrel

/ˈspændrəl/
noun
  1. The roughly triangular space between the curve of an arch and the rectangular frame or wall around it, often found in architecture.
    • The architect designed a simple spandrel to balance the archway.
    • The cathedral's spandrels were decorated with intricate carvings.
    • In Gothic architecture, spandrels often contain religious scenes.
  2. In evolutionary biology, a feature that arises as a byproduct of the evolution of another trait, not as a direct adaptation.
    • The concept of a spandrel helps explain why certain traits exist without a clear purpose.
    • Some scientists argue that the human ability to read is a spandrel of brain development.
    • Language may be a spandrel, emerging from other cognitive abilities.
What does "spandrel" mean? | whatsthatwordmean | whatsthatwordmean